Author Topic: Tiangong - Chinese Space Station  (Read 262150 times)

Offline lucspace

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Re: Chinese Modular Space Station - circa 2020
« Reply #220 on: 06/14/2019 07:44 am »
Last I read, the complex is to be (confusingly) called 'Tiangong'.

Offline Phillip Clark

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Re: Chinese Modular Space Station - circa 2020
« Reply #221 on: 06/14/2019 08:05 am »
Last I read, the complex is to be (confusingly) called 'Tiangong'.

Importantly, not Tiangong 3 but simply Tiangong.   I will refer to it as the "Tiangong Complex" as the modules are attached, just as I talked about the Mir Complex.
I've always been crazy but it's kept me from going insane - WJ.

Offline Zannanza

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Re: Chinese Modular Space Station - circa 2020
« Reply #222 on: 06/14/2019 03:51 pm »
It is rumored in Chinese aerospace forum that LM-5 core stage engine YF-77 failed again in a static fire test on 27 April 2019, and it was determined to be caused by a design flaw in the LOx turbopump which could not be fixed. It is also rumored that LM-5 return to flight is postponed indefinitely. If the rumor turns out to be true, Change-5,6, Mars exploration mission, and the space station will also be delayed indefinitely.
Can anyone confirm the current status of LM-5 program and YF-77 engine problem? Thanks.
source:
https://tieba.baidu.com/p/6151776118
https://tieba.baidu.com/p/6160324628
« Last Edit: 06/14/2019 07:27 pm by Zannanza »

Online Khadgars

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Re: Chinese Modular Space Station - circa 2020
« Reply #223 on: 06/14/2019 04:19 pm »
It is rumored in Chinese aerospace forum that LM-5 core stage engine YF-77 failed again in a static fire test on 27 April 2019, and it was determined to be caused by a design flaw in the LOx turbopump which could not be fixed. It is also rumored that LM-5 return to flight is postponed indefinitely. If the rumor turns out to be true, Change-5,6, Mars exploration mission, and the space station will also be delayed indefinitely.
Anyone can confirm the current status of LM-5 program and YF-77 engine problem? Thanks.
source:
https://tieba.baidu.com/p/6151776118
https://tieba.baidu.com/p/6160324628

Thank you for your post.  That is pretty massive impact if true.
Evil triumphs when good men do nothing - Thomas Jefferson

Online Dalhousie

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Re: Chinese Modular Space Station - circa 2020
« Reply #224 on: 06/15/2019 01:02 am »
It is rumored in Chinese aerospace forum that LM-5 core stage engine YF-77 failed again in a static fire test on 27 April 2019, and it was determined to be caused by a design flaw in the LOx turbopump which could not be fixed. It is also rumored that LM-5 return to flight is postponed indefinitely. If the rumor turns out to be true, Change-5,6, Mars exploration mission, and the space station will also be delayed indefinitely.
Can anyone confirm the current status of LM-5 program and YF-77 engine problem? Thanks.
source:
https://tieba.baidu.com/p/6151776118
https://tieba.baidu.com/p/6160324628

Rumours  are easy. 
"There is nobody who is a bigger fan of sending robots to Mars than me... But I believe firmly that the best, the most comprehensive, the most successful exploration will be done by humans" Steve Squyres

Online MATTBLAK

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Re: Chinese Modular Space Station - circa 2020
« Reply #225 on: 06/15/2019 02:59 am »
Surely, it would just be a case of redesigning the 'LOX Turbopump fault' and flying again when the problem is resolved - however long that takes? I doubt the Chinese space agency would just shelve something for good when a problem could be fixed.
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Offline russianhalo117

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Re: Chinese Modular Space Station - circa 2020
« Reply #226 on: 06/15/2019 06:48 pm »
Surely, it would just be a case of redesigning the 'LOX Turbopump fault' and flying again when the problem is resolved - however long that takes? I doubt the Chinese space agency would just shelve something for good when a problem could be fixed.
The engines originate from Ukraine but are licensed built in China with China receiving the knowledge to build successor engines since they had no prior hydrolox booster engine experience so fixes are much more involved.
Or I may be thinking YF-100 but I think I recall that both are Ukrainian tech or YF-77 is Russian.
« Last Edit: 06/15/2019 06:56 pm by russianhalo117 »

Offline tonya

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Re: Chinese Modular Space Station - circa 2020
« Reply #227 on: 06/15/2019 07:55 pm »
Surely, it would just be a case of redesigning the 'LOX Turbopump fault' and flying again when the problem is resolved - however long that takes? I doubt the Chinese space agency would just shelve something for good when a problem could be fixed.
The engines originate from Ukraine but are licensed built in China with China receiving the knowledge to build successor engines since they had no prior hydrolox booster engine experience so fixes are much more involved.
Or I may be thinking YF-100 but I think I recall that both are Ukrainian tech or YF-77 is Russian.

Just the YF-100 which is derived from the Soviet era RD-120.

Offline baldusi

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Re: Chinese Modular Space Station - circa 2020
« Reply #228 on: 06/15/2019 11:05 pm »
As I understand it, the YF-100 is indeed an RD-120 derivative. But the YF-77 is an hydrolox gas generator, thus I assume an indigenous development. They have been using hydrolox for a long time and have seen some Chinese papers on the TP design.

Offline Olaf

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Offline Phillip Clark

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Re: Chinese Modular Space Station - circa 2020
« Reply #230 on: 08/22/2019 02:39 pm »
https://twitter.com/ShuttleAlmanac/status/1164511704752877574
China has not one but two Tianhe Space Stations. That two Mir-like Stations awaiting launch. Following Soviet protocol of always having a backup Station incase you lose one in launch.

Not really surprising since a few years ago the Chinese indicated that they have the option to add a second core module and two more "radial" modules to the basic three-module Tiangong Complex which they have announced.
I've always been crazy but it's kept me from going insane - WJ.

Offline Satori

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Offline Satori

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Offline Galactic Penguin SST

Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Offline zandr

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Re: Tiangong (Chinese Modular Space Station) - circa 2020
« Reply #234 on: 01/20/2020 07:39 pm »
Cross-post
From Xinhua
China's space station core module, manned spacecraft arrive at launch site
Quote
A core module prototype of China's space station and a prototype of China's new-generation manned spacecraft arrived at the launch site in south China's Hainan Province after a week of ocean and rail transport, the China Manned Space Engineering Office (CMSEO) announced Monday.

The core module will take part in joint rehearsals with the Long March-5B carrier rocket at the Wenchang Space Launch Center while the new manned spacecraft will be launched by the rocket's maiden flight in the first half of this year.
This means the building of China's space station in space will begin soon, the CMSEO said.

The core module, named Tianhe (harmony of the heavens), will function as the command and control center of the space station. It is 16.6 meters long with a diameter of 4.2 meters and a takeoff weight of 22.5 tonnes.

As the largest spacecraft ever developed by China, Tianhe will accommodate three astronauts and serve as a space laboratory to carry out scientific research and technological verifications, the CMSEO said...

Offline plutogno

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Re: Tiangong (Chinese Modular Space Station) - circa 2020
« Reply #235 on: 02/29/2020 06:34 am »
Design of Combustion Science Experimental System for China Space Station
http://www.cjss.ac.cn/EN/10.11728/cjss2020.01.072

Quote
In order to conduct the microgravity combustion experiments in China Manned Space Station, it is necessary to establish an onboard combustion science experiment system. With the experimental study of microgravity combustion, it is beneficial to expand the depth and breadth of combustion research and promote the development of combustion science. According to the functions to be realized and the requirements of combustion experiments, the design and analysis of the experimental system for combustion science rack are carried out. The combustion experiment system consists of eight subsystems, which is a comprehensive experiment system that is suitable for combustion experiments with gas, liquid and solid fuels, respectively. In consideration of the strength design requirements, after the completion of the scheme design, the finite element analysis of the system is carried out, and the mechanical environment experiment is completed with the developed structural setup. The experimental and analytical results show that the design can meet the requirements of the environment simulation experimental outline, and is reasonable and feasible for space experiments.

Offline zandr

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Re: Tiangong (Chinese Modular Space Station) - circa 2020
« Reply #236 on: 04/03/2020 10:06 pm »
https://vk.com/chinaspaceflight?w=wall-119361981_6416
Translation
Quote
"After completing unmanned tests of the Tianhe main module, in a near-earth orbit, a Tianzhou-2 cargo spacecraft will be launched, which will deliver fuel and other supplies to the space station base module. After docking and supply delivery is ensured, to Tianhe and Tianzhou- 2, Shenzhou-12, a manned spacecraft, will be launched, "said Zhang Bainan, chief designer of the Chinese manned spacecraft program, in an interview with Science and Technology Daily.
 
 

Offline ace5

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Re: Tiangong (Chinese Modular Space Station) - circa 2020
« Reply #237 on: 04/16/2020 09:45 am »
This is my render of the Tian He core module

Offline Satori

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Offline dror

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Re: Tiangong (Chinese Modular Space Station) - circa 2020
« Reply #239 on: 05/18/2020 04:06 pm »
From Xinhua

More details of China's space station unveiled.

Quote
The Long March-5B rocket will carry into space the core module and lab capsules, as well as a capsule holding a 2-meter-caliber optical telescope, which will fly in the same orbit as the space station.

The telescope capsule, named Xuntian, is expected to provide observation data for astronomical and physical studies to help scientists better understand the universe. During its expected 10-year operation, it will be able to observe over 40 percent of the sky, said Zhou.

The capsule can dock with the space station for maintenance and refueling. 

This is nice!
The station could also perform as a sort of a space garage.
But is it really helpfull to have a telescope in an easily accessible orbit?
Space is hard immensely complex and high risk !

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